Skin science article
Paula's Choice Resist Barrier Repair Moisturizer with Retinol Versus The Ordinary Niacinamide 10% + Zinc 1%
Paula's Choice Resist Barrier Repair Moisturizer with Retinol Versus The Ordinary Niacinamide 10% + Zinc 1% This barrier-repair moisturizer is formulated around Retinol and Ceramide NP to strengthen the skin barrier and soften the look of wrinkles. This oil-co
Paula's Choice Resist Barrier Repair Moisturizer with Retinol Versus The Ordinary Niacinamide 10% + Zinc 1%
This barrier-repair moisturizer is formulated around Retinol and Ceramide NP to strengthen the skin barrier and soften the look of wrinkles.
This oil-control serum is formulated around Niacinamide and Zinc PCA to balance excess oil and refine the look of pores.
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Water
Dicaprylyl Carbonate
Glycerin
Ethylhexyl Stearate
Cocoglycerides
Butyrospermum Parkii Butter
Squalane
Sodium Polyacrylate
Lecithin
Adenosine
Palmitoyl Tripeptide-1
Ceramide NP
Retinol
Punica Granatum Extract
Camellia Oleifera Leaf Extract
Glycyrrhiza Glabra Root Extract
Tetrahydrodiferuloylmethane
Tetrahydrodemethoxydiferuloylmethane
Tetrahydrobisdemethoxydiferuloylmethane
Tocopheryl Acetate
Chamomilla Recutita Flower Extract
Glycine Soja Seed Extract
Glycine Soja Oil
Butylene Glycol
Propylene Glycol
Glyceryl Polymethacrylate
Xanthan Gum
Phenoxyethanol
Water, Dicaprylyl Carbonate, Glycerin, Ethylhexyl Stearate, Cocoglycerides, Butyrospermum Parkii Butter, Squalane, Sodium Polyacrylate, Lecithin, Adenosine, Palmitoyl Tripeptide-1, Ceramide NP, Retinol, Punica Granatum Extract, Camellia Oleifera Leaf Extract, Glycyrrhiza Glabra Root Extract, Tetrahydrodiferuloylmethane, Tetrahydrodemethoxydiferuloylmethane, Tetrahydrobisdemethoxydiferuloylmethane, Tocopheryl Acetate, Chamomilla Recutita Flower Extract, Glycine Soja Seed Extract, Glycine Soja Oil, Butylene Glycol, Propylene Glycol, Glyceryl Polymethacrylate, Xanthan Gum, Phenoxyethanol
Niacinamide 10%
Pentylene Glycol
Zinc PCA 1%
Dimethyl Isosorbide
Tamarindus Indica Seed Gum
Isoceteth-20
Ethoxydiglycol
Chlorphenesin
Water, Niacinamide 10%, Pentylene Glycol, Zinc PCA 1%, Dimethyl Isosorbide, Tamarindus Indica Seed Gum, Xanthan Gum, Isoceteth-20, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.